If this a-hole prefers to shop where his package will not be checked against proof of purchase, he is free to go elswhere. The rest of us don’t mind helping in the war against shoplifting. A pox on him.
I agree with those who support the receipt/bag checks. I get receipts checked at Sams, Costco, Walmart and Best Buy, among others, all the time. Assuming it is a search under the Constitution, it isn’t unreasonable, to my mind. There’s no expectation of privacy in goods just purchased from a store.
But the the main thing I see here is someone just looking to be upset, and to have family members upset. This guy seems to have WANTED to be harmed. He wasn’t.